Research On Facilities Allocation Of Railway Marshalling Station Under The Freight Reform

With China's high-speed railway gradually completed and opened to traffic,the railway freight capacity has been released,which creates conditions for transport organizations in accordance with market demand.Since September 20,2012,the railway department has being carrying out the "real-freight" transport organization.Relying on freight ecommerce system,simplifying the consignment procedures,saving the transport time,the "real-freight" transport organization also improve the railway sector's own work efficiency,so that the railway logistics services to further expand.Marshalling station as one of the most important subsystems in the railway system,its adaptability to the cargo change determines the quality of the transport of goods.This paper first introduces the classification and distribution of the railway marshalling station in China,analyzes the current situation of the transportation organization and equipment disposition of marshalling station,and expounds that the ability of the capacity and adaptability of the marshalling station under the trend of freight organization reform is basically adapted to the requirements of cargo reform.Then,from the aspects of the contents of the cargo transportation reform,the impact on the freight flow and the impact on the traffic flow,the paper analyzes the characteristics of the cargo transportation reform,summarizes the new transportation products introduced by the railway after the cargo transportation reform,and the definition and timeliness requirements of express freight train.By qualitative analysis of express freight train in the marshalling station within the transport organization needs that the fast truck group due to an 18 hour time limit,its arrival,disintegration and marshalling process has a certain priority.Therefore,the marshalling station is supposed to changing the previous organization,and instead to fast truck group as the core of the transport organization.Quantitative calculation of the marshalling station to the hairline,shunting locomotives,humps and shunting lines and other equipment due to freight reform and additional operations caused by the empty capacity.Taking arrival tracks as the research object,the concept of fast truck group arrival combination is put forward,and four train arrival combinations are given.Based on the idea of queuing theory,combined with the minimum interval method to calculate the minimum train arrival interval of the four combinations,find the minimum arrival interval of the arrival train to reach the interval,get the capacity of arrival track,and further calculate the arrival track fee.Finally,the Chengdu North Marshalling Station is used as an example to analyze the application of marshalling station equipment.